CN205606594U - Formaldehyde tail gas processing apparatus - Google Patents
Formaldehyde tail gas processing apparatus Download PDFInfo
- Publication number
- CN205606594U CN205606594U CN201620339207.6U CN201620339207U CN205606594U CN 205606594 U CN205606594 U CN 205606594U CN 201620339207 U CN201620339207 U CN 201620339207U CN 205606594 U CN205606594 U CN 205606594U
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- Prior art keywords
- formaldehyde
- tail gas
- air
- automatically controlled
- flow valve
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Abstract
The utility model discloses a formaldehyde tail gas processing apparatus, including a tail gas treatment tower and an air -blower, its characterized in that: be provided with a combustor that is used for carrying out formaldehyde tail gas and air the intensive mixing in the burning zone, be provided with exhaust inlet pipe on the combustor and say and the air intake duct way, outwards set gradually the consistency transmitter that is arranged in detecting formaldehyde tail gas hydrogen and carbon monoxide concentration, be used for controlling the first automatically controlled flow valve of formaldehyde tail gas flow and be used for carrying out the first pre -heater that preheats for formaldehyde tail gas along the burning zone on the exhaust inlet pipe way, outwards set gradually the 2nd consistency transmitter that is arranged in detecting air oxygen concentration, be used for controlling air mass flow's the automatically controlled flow valve of second and be used for carrying out the second pre -heater that preheats for the air along the burning zone on the air intake duct way, a consistency transmitter, the 2nd consistency transmitter, first automatically controlled flow valve and the automatically controlled flow valve of second are connected with controller electricity.
Description
Technical field
This utility model relates to a kind of exhaust gas processing device, particularly relates to a kind of formaldehyde exhaust gas processing device.
Background technology
Formaldehyde is industrial important raw and processed materials, is also the basic industries of Chemical Manufacture, to produce a large amount of in Formaldehyde Production
Tail gas, often produce one ton of formaldehyde products and will produce about more than 600 cube its calorific value of 37% tail gas at 1970kj/mol, this
Containing hydrogen, carbon monoxide, methane, carbon dioxide, nitrogen and a small amount of moisture content in a little tails.People know now
Road formaldehyde gas is harmful to, if production formaldehyde factory naturally discharges or environment all can be caused severe contamination especially to the person by burning and exhausting
Health threatens.But it should also be understood that it is certain to be that fuel gas has containing hydrogen, carbon monoxide etc. in formaldehyde exhaust gas component
Calorific value, if using is clean energy resource.
Formaldehyde Production enterprise uses formaldehyde exhaust gas treating device PARA FORMALDEHYDE PRILLS(91,95) tail gas to process, general formaldehyde exhaust gas treating device bag
Include and be positioned at bottom and realize burning zone that formaldehyde tail gas and air carry out burning and be positioned at top and realize the heat exchanging segment of heat exchange, change
The top of hot arc is provided with chimney, and the high temperature utilizing the burning of formaldehyde to produce carries out the making of water vapour, thus produces certain
Economic benefit and environmental benefit.But, in existing formaldehyde exhaust gas processing device, enter the formaldehyde tail gas in burning zone
The concentration of concentration, particularly hydrogen and carbon monoxide, and enter the oxygen concentration in burning zone, both concentration exists
And unmatched problem, easily occur that the imflammable gas such as the hydrogen in formaldehyde tail gas and carbon monoxide are not completely burned nearly
Being expelled to external environment condition to the greatest extent, the efficiency of combustion causing formaldehyde tail gas is low.
Utility model content
The technical problems to be solved in the utility model is the present situation for prior art, it is provided that one ensure that entrance burning
Formaldehyde tail gas concentration and air oxygen concentration in Duan realize optimal components ratio, improve the first of formaldehyde exhaust combustion efficiency further
Aldehyde exhaust gas processing device.
The technical scheme that the above-mentioned technical problem of this utility model solution is used is: a kind of formaldehyde exhaust gas processing device, including
One vent gas treatment tower and to be arranged at vent gas treatment tower outer for carrying the aerator of air, this vent gas treatment tower includes being positioned at the end
Portion realizes burning zone that formaldehyde tail gas and air carry out burning and is positioned at top and realizes the heat exchanging segment of heat exchange, the top of heat exchanging segment
Portion is provided with chimney, it is characterised in that: it is provided with one in described burning zone for formaldehyde tail gas and air fully being mixed
The burner closed, the side of burner is provided with the tail gas admission line entered for formaldehyde tail gas, another of burner
Side is provided with and is connected with aerator for carrying the air intake pipe that air enters, along burning on described tail gas admission line
Section is outwards disposed with for detecting hydrogen and the first concentration sensor of carbonomonoxide concentration in formaldehyde tail gas, for controlling
First automatically controlled flow valve of formaldehyde exhaust flow processed and for the first preheater carrying out preheating to formaldehyde tail gas, described sky
Outwards it is disposed with along burning zone on gas admission line for detecting the second concentration sensor of oxygen concentration in air, use
In controlling the second automatically controlled flow valve of air mass flow and for carrying out, to air, the second preheater of preheating, described first dense
Degree sensor, the second concentration sensor, the first automatically controlled flow valve and the second automatically controlled flow valve and controller electrical connection.
As improvement, described first preheater and described second preheater are respectively arranged with temperature detector, temperature detection
Device is electrically connected with the controller, and by arranging temperature detector, is conducive to controlling formaldehyde tail gas and preheating of air temperature.
Improve again, between described burning zone and heat exchanging segment, be provided with a combustion journey section, by arranging combustion journey section, increase formaldehyde
The combustion journey of exhaust combustion, it is ensured that formaldehyde tail gas can the burning of long period so that formaldehyde tail gas can further by
Burning is totally.
Improve again, described air intake pipe is provided with damper at the aerator, utilize the damper can be with hands
The dynamic air mass flow limiting aerator.
Improve again, in described chimney, be provided with filter screen, utilize filter screen that the tail gas eventually entering in air is finally filtered.
Improving, the bottom outside of described heat exchanging segment is provided with water inlet again, and the top outer of heat exchanging segment is provided with steam (vapor) outlet,
Steam (vapor) outlet is connected with drum, is provided with the many water being longitudinally arranged and be connected with water inlet and steam (vapor) outlet in heat exchanging segment
Pipe, is arranged at the bottom of heat exchanging segment by water inlet, and steam (vapor) outlet is arranged at the top of heat exchanging segment, and water pipe is longitudinally arranged, suitable
Answer the motion path that steam moves upward, it is to avoid steam carries out disturbance to water, thus ensure that the temperature of steam (vapor) outlet.
Compared with prior art, owing to the utility model has the advantage of: this utility model will by utilizing burner to realize
Formaldehyde tail gas and air can be sufficiently mixed after introducing burning zone, sense by arranging the first concentration at tail gas admission line
Device, utilizes this first concentration sensor to measure main hydrogen and the concentration of carbon monoxide in formaldehyde tail gas, by air
Admission line arranges the second concentration sensor, utilizes this second concentration sensor to measure the levels of oxygen in air, with
Time, measurement numerical value passes to controller by the first concentration sensor and the second concentration sensor, and controller is by calculating place
Suitably concentration proportioning, then control the unlatching size of the first automatically controlled flow valve and the second automatically controlled flow valve to control exhaust flow
And air mass flow so that it is reach the proportioning needed, it is ensured that appropriate formaldehyde tail gas and the rational proportion of air, meanwhile,
Formaldehyde tail gas and air to entering in burning zone carry out preheating in advance, thus improve the efficiency of combustion of formaldehyde tail gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of formaldehyde exhaust gas processing device in this utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
As it is shown in figure 1, the formaldehyde exhaust gas processing device 1 in this enforcement, sense including vent gas treatment tower the 1, first concentration
Device the 51, second concentration sensor the 52, first preheater the 31, second preheater the 32, first automatically controlled flow valve 41, second
Automatically controlled flow valve 42 and aerator 2, wherein vent gas treatment tower 1 includes burning zone 11, combustion journey section 15, heat exchanging segment 12
With chimney 13.
Wherein, aerator 2 is arranged at outside vent gas treatment tower 1, is used for carrying air, and vent gas treatment tower 2 includes being positioned at the end
Portion realizes burning zone 11 that formaldehyde tail gas and air carry out burning and is positioned at top and realizes the heat exchanging segment 12 of heat exchange, heat exchange
The top of section 12 is provided with chimney 13, is provided with one for formaldehyde tail gas and air being carried out fully in described burning zone 11
The burner 6 of mixing, the side of burner 6 is provided with the tail gas admission line 1113 entered for formaldehyde tail gas, combustion
The opposite side of burner 6 is provided with and is connected with aerator 2 for carrying the air intake pipe 1121 that air enters, described tail
Outwards it is disposed with for detecting hydrogen and carbon monoxide in formaldehyde tail gas dense along burning zone 11 on gas admission line 1113
First concentration sensor 51 of degree, for controlling the first automatically controlled flow valve 41 of formaldehyde exhaust flow and for formaldehyde
Tail gas carries out the first preheater 31 preheated, and described air intake pipe 1121 outwards sets gradually useful along burning zone
In detecting the second concentration sensor 52 of oxygen concentration in air, for controlling the second automatically controlled flow valve 42 of air mass flow
And for the second preheater 32 carrying out preheating to air, further, the first preheater 31 and described second preheating
Being respectively arranged with temperature detector on device 32, temperature detector is electrically connected with the controller, by arranging temperature detector,
Beneficially control formaldehyde tail gas and preheating of air temperature, described first concentration sensor the 51, second concentration sensor 52,
First automatically controlled flow valve 51 and the second automatically controlled flow valve 52 electrically connect with a controller；It addition, the bottom of heat exchanging segment 12
Outside is provided with water inlet 122, and the top outer of heat exchanging segment 12 is provided with steam (vapor) outlet 123, steam (vapor) outlet 123 and vapour
Bag is connected, and is provided with the many water being longitudinally arranged and be connected with water inlet 122 and steam (vapor) outlet 123 in heat exchanging segment 12
Pipe 121, is arranged at the bottom of heat exchanging segment 12 by water inlet 122, and steam (vapor) outlet 123 is arranged at the top of heat exchanging segment 12,
Water pipe 121 is longitudinally arranged, and has adapted to the motion path that steam moves upward, it is to avoid steam carries out disturbance to water, thus protects
Demonstrate,prove the temperature of steam (vapor) outlet 123 steam.
It addition, be provided with a combustion journey section 15 between burning zone 11 and heat exchanging segment 12, by arranging combustion journey section 15, increase
The combustion journey of formaldehyde exhaust combustion, it is ensured that formaldehyde tail gas can the burning of long period so that formaldehyde tail gas can enter one
It is burned totally to step.
Additionally, be provided with damper 21 at aerator 2 on air intake pipe 1121, utilize damper 21
Can manually limit the air mass flow of aerator 2.
Finally, in chimney 13, it is provided with filter screen 131, utilizes the filter screen 131 tail gas to eventually entering in air to carry out
Rear filtration.
Operation principle of the present utility model is:
Formaldehyde tail gas initially enters the first preheater 31 under the control of the controller and preheats, the formaldehyde tail gas after preheating
Up to 280 DEG C, the first automatically controlled flow valve 41 controls the flow of formaldehyde tail gas, and formaldehyde tail gas enters the combustion in burning zone 11
Burner 6, the oxygen needed for burning has aerator 2 to provide, and air is sent into burner 6 by aerator 2, by burner 6
Realizing being sufficiently mixed of formaldehyde tail gas and air, similarly, the air of entrance is also preheated through the second preheater 32,
Air after preheating is up to 200 DEG C, and meanwhile, the second automatically controlled flow valve 42 controls the flow of air, the first concentration sensor
51 and second concentration sensor 52 simultaneously PARA FORMALDEHYDE PRILLS(91,95) tail gas and air oxygen concentration detect, it is achieved formaldehyde in burning zone
Tail gas and the rational proportion of air oxygen concentration, the high temperature formaldehyde exhaust temperature after burning up to 700 DEG C, such high temperature
The tail gas water pipe 121 in heat exchanging segment 12, the formaldehyde tail gas exchange hot arc 12 of high temperature from lower to upper heats, and makes
The softening water obtained in water pipe 121 becomes steam, enters drum from steam (vapor) outlet 123, and last tail gas is from chimney 13 row
Go out.The handling rate of formaldehyde of the present utility model, formaldehyde and carbon monoxide reaches 99%；It addition, also substantially increase energy
Utilization rate, can be with byproduct steam for production and application.
To sum up, this utility model is by can be abundant after utilizing burner 6 to realize formaldehyde tail gas and air are introduced burning zone
Mixing, by arranging the first concentration sensor 51 at tail gas admission line 1113, utilizes this first concentration sensor 51
Measure main hydrogen and the concentration of carbon monoxide in formaldehyde tail gas, dense by arranging second at air intake pipe 1121
Degree sensor 52, utilizes this second concentration sensor 52 to measure the levels of oxygen in air, meanwhile, the first concentration
Measurement numerical value is passed to controller by sensor 51 and the second concentration sensor 52, and controller is suitable by the place of calculating
Concentration proportioning, then control the unlatching size of the first automatically controlled flow valve 41 and the second automatically controlled flow valve 42 to control exhaust flow
And air mass flow so that it is reach the proportioning needed, it is ensured that appropriate formaldehyde tail gas and the rational proportion of air, meanwhile,
Utilize the first preheater 31 and the second preheater 32, it is achieved formaldehyde tail gas and air to entering in burning zone 11 carry
Front preheating, thus improve the efficiency of combustion of formaldehyde tail gas.
Claims (6)
1. a formaldehyde exhaust gas processing device, including a vent gas treatment tower (1) be arranged at vent gas treatment tower (1) outward for defeated
Sending the aerator (2) of air, this vent gas treatment tower (1) includes being positioned at bottom and realizes the combustion that formaldehyde tail gas and air carry out burning
Burning section (11) and be positioned at top and realize the heat exchanging segment (12) of heat exchange, the top of heat exchanging segment (12) is provided with chimney (13), its spy
Levy and be: be provided with one for formaldehyde tail gas and air are carried out well-mixed burner (6) in described burning zone (11),
The tail gas admission line (1113) entered for formaldehyde tail gas, the opposite side of burner (6) it is provided with on the side of burner (6)
It is provided with and is connected with aerator (2) for carrying the air intake pipe (1121) that air enters, described tail gas admission line
(1113) outwards it is disposed with for detecting hydrogen and the first of carbonomonoxide concentration in formaldehyde tail gas along burning zone (11) on
Concentration sensor (51), for controlling the first automatically controlled flow valve (41) of formaldehyde exhaust flow and for entering to formaldehyde tail gas
Row preheating the first preheater (31), on described air intake pipe (1121) along burning zone (11) be outwards disposed with for
Detect second concentration sensor (52) of oxygen concentration in air, for controlling the second automatically controlled flow valve (42) of air mass flow
And for the second preheater (32) carrying out preheating to air, described first concentration sensor (51), the second concentration sensing
Device (52), the first automatically controlled flow valve (41) and the second automatically controlled flow valve (42) electrically connect with a controller.
Formaldehyde exhaust gas processing device the most according to claim 1, it is characterised in that: described first preheater (31)
Being respectively arranged with temperature detector with on described second preheater (32), temperature detector is electrically connected with the controller.
Formaldehyde exhaust gas processing device the most according to claim 2, it is characterised in that: described burning zone (11) with change
Combustion journey section (15) it is provided with between hot arc (12).
Formaldehyde exhaust gas processing device the most according to claim 3, it is characterised in that: described air intake pipe (1121)
Upper close aerator (2) place is provided with damper (21).
Formaldehyde exhaust gas processing device the most according to claim 1, it is characterised in that: arrange in described chimney (13)
There is filter screen (131).
6. according to the formaldehyde exhaust gas processing device described in any one of claim 1 to 5, it is characterised in that: described heat exchange
The bottom outside of section (12) is provided with water inlet (122), and the top outer of heat exchanging segment (12) is provided with steam (vapor) outlet (123), steams
Vapor outlet (123) is connected with drum, is provided with many and is longitudinally arranged and goes out with water inlet (122) and steam in heat exchanging segment (12)
The water pipe (121) that mouth (123) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620339207.6U CN205606594U (en) | 2016-04-21 | 2016-04-21 | Formaldehyde tail gas processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620339207.6U CN205606594U (en) | 2016-04-21 | 2016-04-21 | Formaldehyde tail gas processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205606594U true CN205606594U (en) | 2016-09-28 |
Family
ID=56970009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620339207.6U Expired - Fee Related CN205606594U (en) | 2016-04-21 | 2016-04-21 | Formaldehyde tail gas processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205606594U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702115A (en) * | 2017-10-14 | 2018-02-16 | 杨朴 | A kind of tail-gas combustion stove of incinerator |
| CN111023118A (en) * | 2019-10-29 | 2020-04-17 | 河南佰利联新材料有限公司 | Tail gas combustion treatment method and system |
-
2016
- 2016-04-21 CN CN201620339207.6U patent/CN205606594U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702115A (en) * | 2017-10-14 | 2018-02-16 | 杨朴 | A kind of tail-gas combustion stove of incinerator |
| CN111023118A (en) * | 2019-10-29 | 2020-04-17 | 河南佰利联新材料有限公司 | Tail gas combustion treatment method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 |